41100-ZW5-810ZA Honda Gearbox 25" Extra Long Shaft | Genuine Used Part

🔧 Product Description

Genuine Honda BF115A / BF130A Oyster Silver 25-Inch Gearcase Housing - Part Number: 41100-ZW5-810ZA

A genuine Honda Oyster Silver gearcase housing for selected BF115A and BF130A extra-long-shaft four-stroke outboards. The service number identifies the 25-inch standard-rotation gearcase case; internal gears, shafts, bearing carrier, shift parts and water-pump components are included only when the used item is sold as a complete assembled lower unit.

⚙️ Key Features

• Genuine Honda OEM 25-inch gearcase
• Correct part number 41100-ZW5-810ZA
• NH282MU Oyster Silver finish
• Standard propeller rotation
• Used on early BF115A / BF130A inline-four outboards

🚤 Compatibility

• Honda BF115A 25-inch / X-shaft model families
• Honda BF130A 25-inch / X-shaft model families
• Approximate model years: 1999-2007
• Standard rotation only
• Exact use is controlled by engine model code and serial number

🔌 Function

The gearcase housing supports the gears and shafts, directs exhaust and cooling-water flow and transfers engine torque to the propeller.

⚠️ Common Signs of Failure

• Skeg or cavitation plate is damaged
• Bearing bores are worn
• Gear oil leaks through cracked housing
• Propeller-shaft carrier threads are damaged
• Driveshaft or gears are corroded
• Water pump or shift linkage fails

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 41100-ZW5-810ZA is the documented extra-long standard-rotation gearcase reference
• No direct universal supersession has been verified
• Counter-rotation, long-shaft and later ZY6 cases use different numbers

OEM / Related Numbers

• 41100-ZW5-810ZA
• 40202-ZW1-710ZA related extension separator
• Related 25-inch driveshaft
• Related propeller-shaft holder, gears, shift rod and water-pump assembly
• Related BF115A / BF130A anodes and seals

Aftermarket / Verified Equivalents

• Specialist remanufactured Honda BF115A / BF130A 25-inch lower units
• Used complete Honda lower units from marine dismantlers
• Aftermarket seal, bearing and water-pump kits are available separately
• No verified new aftermarket bare housing with a distinct direct part number

📦 Condition

• Genuine used part
• Internal parts and included driveshaft are as shown
• In good working condition unless otherwise stated